19880072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1151}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 19933048

約数列:

[1, 2, 4, 8, 17, 34, 68, 127, 136, 254, 508, 1016, 1151, 2159, 2302, 4318, 4604, 8636, 9208, 17272, 19567, 39134, 78268, 146177, 156536, 292354, 584708, 1169416, 2485009, 4970018, 9940036, 19880072]

約数ペア:

[(1, 19880072), (2, 9940036), (4, 4970018), (8, 2485009), (17, 1169416), (34, 584708), (68, 292354), (127, 156536), (136, 146177), (254, 78268), (508, 39134), (1016, 19567), (1151, 17272), (2159, 9208), (2302, 8636), (4318, 4604)]